subnet.im

Allocated but unannounced space

Every block here was allocated or assigned by a regional internet registry, and none of them appeared in any routing table we collected at our last snapshot — neither as a route of their own, nor covered by a larger announcement, nor carved up into more specifics.

“Unannounced” does not mean “unused”

Plenty of allocated space is deliberately kept off the public internet: private interconnects, lab and lawful-intercept ranges, networks reachable only inside one operator, and space held in reserve. Some of it is announced somewhere our collectors cannot see, which is a limit of our vantage points rather than a fact about the block.

It is also a snapshot, not a history: a block announced yesterday and withdrawn this morning appears here today. Nothing on this page means a block is unallocated, available, or free to announce.

Browse by registry

Browse by country

Countries with the most unannounced blocks, largest first.

Unannounced blocks in United States

27,014 blocks match, ordered by prefix.

Allocated but unannounced blocks, 7501 to 7550 of 27014
PrefixAddressesRegistryCountryAllocated
192.5.54.0/24256ARINUS27th Feb 1984
192.5.55.0/24256ARINUS26th Mar 1990
192.5.56.0/24256ARINUS30th May 1984
192.5.57.0/24256ARINUS12th Feb 2014
192.5.64.0/24256ARINUS13th Apr 1984
192.5.68.0/23512ARINUS17th Jun 2021
192.5.70.0/24256ARINUS1st Jun 1984
192.5.72.0/24256ARINUS1st Nov 1989
192.5.74.0/23512ARINUS20th May 1988
192.5.76.0/221kARINUS20th May 1988
192.5.80.0/23512ARINUS20th May 1988
192.5.82.0/24256ARINUS25th May 1988
192.5.83.0/24256ARINUS23rd May 1988
192.5.88.0/24256ARINUS25th Feb 1991
192.5.9.0/24256ARINUS19th Jan 1983
192.5.94.0/24256ARINUS10th Jul 1984
192.5.95.0/24256ARINUS10th Jul 1984
192.52.100.0/24256ARINUS7th Apr 1989
192.52.101.0/24256ARINUS7th Apr 1989
192.52.102.0/24256ARINUS7th Apr 1989
192.52.103.0/24256ARINUS7th Apr 1989
192.52.104.0/24256ARINUS7th Apr 1989
192.52.105.0/24256ARINUS7th Apr 1989
192.52.107.0/24256ARINUS11th Apr 1989
192.52.110.0/24256ARINUS14th Apr 1989
192.52.113.0/24256ARINUS14th Apr 1989
192.52.116.0/24256ARINUS14th Apr 1989
192.52.118.0/24256ARINUS1st Oct 2014
192.52.151.0/24256ARINUS19th Apr 1989
192.52.153.0/24256ARINUS20th Apr 1989
192.52.154.0/24256ARINUS20th Apr 1989
192.52.157.0/24256ARINUS21st Apr 1989
192.52.170.0/24256ARINUS25th Apr 1989
192.52.180.0/24256ARINUS27th Apr 1989
192.52.181.0/24256ARINUS27th Apr 1989
192.52.182.0/24256ARINUS27th Apr 1989
192.52.184.0/24256ARINUS3rd May 1989
192.52.186.0/24256ARINUS3rd May 1989
192.52.187.0/24256ARINUS4th May 1989
192.52.195.0/24256ARINUS8th May 1989
192.52.218.0/24256ARINUS10th May 1989
192.52.226.0/24256ARINUS18th Nov 1993
192.52.229.0/24256ARINUS15th May 1989
192.52.230.0/24256ARINUS15th May 1989
192.52.231.0/24256ARINUS15th May 1989
192.52.244.0/24256ARINUS18th May 1989
192.52.245.0/24256ARINUS18th May 1989
192.52.252.0/24256ARINUS24th May 1989
192.52.51.0/24256ARINUS23rd Mar 1989
192.52.56.0/221kARINUS23rd Mar 1989